import java.util.Scanner;

public class GuessNumber {
    public static void main(String[] args) {
        //1.生成数字
        Scanner scan = new Scanner(System.in);
        String again;
        do {
            int answer = (int) (Math.random() * 100 + 1);
            int chances = 7;
            while (chances > 0) {

                //2.接受猜测数字
                System.out.println("请猜一个1-100之间的整数,你还有" + chances + "次机会,输入-1可结束本轮游戏");
                int guess;
                try{
                   guess = scan.nextInt();
                }catch (Exception e){
                    System.out.println("请输入合法数字");
                    scan.next();
                    continue;
                }

                //3.比较答案与猜测数字大小
                if(guess==-1){
                    break;
                }
                else if(guess > answer){
                    System.out.println("大了");
                } else if (guess < answer) {
                    System.out.println("小了");
                } else {
                    System.out.println("恭喜你猜对了");
                    break;
                }
                chances = chances - 1;
                //4.每猜一次比较一次

            }
            if (chances <= 0) {
                System.out.println("你没有机会了");
            }

            System.out.println("再玩一次吗？(y/n)");
        again = scan.next(); }while (again.equalsIgnoreCase("y"));
    }
}
